199909 divided by 90 
Our goal is to divide 199909 by 90.

Moving on to step 1:
90 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 90

On to step 2:
19 divided by 90 is 0 with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 19 after subtracting 0 from 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 90

Moving on to step 3:
199 divided by 90 is 2 with a remainder of 19.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 180 from 199 to get 19.
Grab the next digit (9) from the dividend, add it to 19, then carry on: 199 / 90

On to step 4:
If we divide 199 by 90, we get 2 and a remainder of 19.
Write down 2 as next digit of the result. 
Result so far: 22.0
Subtracting 180 from 199 leaves us with 19.
Fetch the next digit (0) from the dividend, attach it to 19 and continue: 190 / 90

On to step 5:
90 can be fit into 190 2 times, resulting in a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 222.0
The remainder is 10 after subtracting 180 from 190.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 90

Let's proceed to step 6:
When dividing 109 by 90, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 2221.0
Subtract 90 from 109 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
When dividing 190 by 90, we get 2 with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 2221.2
If we subtract 180 from 190, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
100 divided by 90 is 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 2221.21
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
90 can be fit into 100 1 times, resulting in a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 2221.211
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 2221.211 and a remainder of 0.001.